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119 lines
4.5 KiB
C
119 lines
4.5 KiB
C
/* GStreamer
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* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_BASE_RTP_DEPAYLOAD_H__
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#define __GST_BASE_RTP_DEPAYLOAD_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstrtpbuffer.h>
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G_BEGIN_DECLS
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#define GST_TYPE_BASE_RTP_DEPAYLOAD (gst_base_rtp_depayload_get_type())
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#define GST_BASE_RTP_DEPAYLOAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_RTP_DEPAYLOAD,GstBaseRTPDepayload))
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#define GST_BASE_RTP_DEPAYLOAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_RTP_DEPAYLOAD,GstBaseRTPDepayloadClass))
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#define GST_BASE_RTP_DEPAYLOAD_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_BASE_RTP_DEPAYLOAD,GstBaseRTPDepayloadClass))
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#define GST_IS_BASE_RTP_DEPAYLOAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_RTP_DEPAYLOAD))
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#define GST_IS_BASE_RTP_DEPAYLOAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_RTP_DEPAYLOAD))
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#define GST_BASE_RTP_DEPAYLOAD_SINKPAD(depayload) (GST_BASE_RTP_DEPAYLOAD (depayload)->sinkpad)
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#define GST_BASE_RTP_DEPAYLOAD_SRCPAD(depayload) (GST_BASE_RTP_DEPAYLOAD (depayload)->srcpad)
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typedef struct _GstBaseRTPDepayload GstBaseRTPDepayload;
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typedef struct _GstBaseRTPDepayloadClass GstBaseRTPDepayloadClass;
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typedef struct _GstBaseRTPDepayloadPrivate GstBaseRTPDepayloadPrivate;
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struct _GstBaseRTPDepayload
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{
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GstElement parent;
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GstPad *sinkpad, *srcpad;
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/* this attribute must be set by the child */
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guint clock_rate;
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GstSegment segment;
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gboolean need_newsegment;
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/*< private >*/
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GstBaseRTPDepayloadPrivate *priv;
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gpointer _gst_reserved[GST_PADDING-1];
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};
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/**
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* GstBaseRTPDepayloadClass:
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* @parent_class: the parent class
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* @set_caps: configure the depayloader
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* @add_to_queue: (deprecated)
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* @process: process incoming rtp packets
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* @set_gst_timestamp: convert from RTP timestamp to GST timestamp
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* @packet_lost: signal the depayloader about packet loss
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* @handle_event: custom event handling
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*
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* Base class for audio RTP payloader.
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*/
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struct _GstBaseRTPDepayloadClass
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{
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GstElementClass parent_class;
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/* virtuals, inform the subclass of the caps. */
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gboolean (*set_caps) (GstBaseRTPDepayload *filter, GstCaps *caps);
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/* pure virtual function, child must use this to process incoming
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* rtp packets. If the child returns a buffer without a valid timestamp,
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* the timestamp of @in will be applied to the result buffer and the
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* buffer will be pushed. If this function returns %NULL, nothing is
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* pushed. */
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GstBuffer * (*process) (GstBaseRTPDepayload *base, GstBuffer *in);
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/* non-pure function used to convert from RTP timestamp to GST timestamp
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* this function is used by the child class before gst_pad_pushing */
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void (*set_gst_timestamp) (GstBaseRTPDepayload *filter, guint32 timestamp, GstBuffer *buf);
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/* non-pure function used to to signal the depayloader about packet loss. the
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* timestamp and duration are the estimated values of the lost packet.
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* The default implementation of this message pushes a segment update. */
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gboolean (*packet_lost) (GstBaseRTPDepayload *filter, GstEvent *event);
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/* the default implementation does the default actions for events but
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* implementation can override.
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* Since: 0.10.32 */
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gboolean (*handle_event) (GstBaseRTPDepayload * filter, GstEvent * event);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING-2];
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};
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GType gst_base_rtp_depayload_get_type (void);
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GstFlowReturn gst_base_rtp_depayload_push (GstBaseRTPDepayload *filter, GstBuffer *out_buf);
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GstFlowReturn gst_base_rtp_depayload_push_ts (GstBaseRTPDepayload *filter,
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guint32 timestamp, GstBuffer *out_buf);
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GstFlowReturn gst_base_rtp_depayload_push_list (GstBaseRTPDepayload *filter, GstBufferList *out_list);
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G_END_DECLS
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#endif /* __GST_BASE_RTP_DEPAYLOAD_H__ */
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